Table 3 –

Impact of coronary artery bypass grafting on risk of first, recurrent and total hospitalization.

Outcome	CABG	MED	Adjusted Hazard Ratio	95% Confidence Interval	p value
Time to first event analysis
All-cause hospitalization (n= 732)	349(57.2%)	383(63.6%)	0.85	0.74 – 0.98	0.03
Cardiovascular hospitalization (n= 618)	276(45.2%)	342(56.8%)	0.71	0.60 – 0.83	0.001
Heart failure hospitalization (n= 357)	156(25.6%)	201(33.4%)	0.71	0.57 – 0.89	0.003
Non-cardiovascular hospitalization (n= 365)	193(31.6%)	172(28.6%)	1.18	0.95 – 1.47	0.27
Total hospitalization analysis.
All-cause hospitalization (n= 2549)	1199	1350	0.78	0.65 – 0.94	< 0.001
Cardiovascular hospitalization (n= 1712)	744	968	0.66	0.55 – 0.81	0.001
Heart failure hospitalization (n= 907)	395	512	0.68	0.52 – 0.89	0.005
Non-cardiovascular hospitalization (n= 837)	455	382	1.05	0.78 – 1.40	0.76

CABG- coronary artery bypass surgery; HF – heart failure; MED- optimal medical therapy